
import builtins
# 在交互式的命令行环境里，可通过如下方法查看BIF：

# 方法一：
# print(dir(int))

# 方法二：
# import builtins    # Python2无module builtins
# dir(builtins)    # dir([object])可查看任何object的属性，如module、class、function等

# 方法三：前面的都是浮云！！！
# 打开浏览器，复制以下网址：https://docs.python.org/zh-cn/3.7/library/functions.html
# m = int(input("请输入1到100之间的数字："))
# if m >= 1 and m<=100:
#     print("你")
# if 1 <= m <= 100:
#     print("haha")
# else:
#     print("gun")
# DayPerYear = 366
# HoursPerDay = 24
# MinutesPerHour = 60
# SecondsPerMinute = 60
# print(DayPerYear*HoursPerDay*MinutesPerHour*SecondsPerMinute)
# str = 'C:\\Program Files\\FishC\\Good\\'
# print(str)
# str1 = r'C:\Program Files\FishC\Good''\\'
# print(str1)
# print(150000)
# print("一假一真")
# print(0 and 2)
# print(2 and 0)
# print("同为真")
# print(2 and 'you')
# print('you' and 2)
# print(2 and ' ')#这里输出的结果应该是空格
# print(' ' and 2)#这里输出的结果应该是空格
# print("同为假")
# print(0 and "")
# print("" and 0)#这里输出的应该是空？（有点疑问
# j = int(input("请输入一个整数："))
# for i in range(1,j+1):
#     print(i)
# assert 3 > 4
# j = int(input("请输入一个整数："))
# for i in range(1,j+1):
#     for m in range(i,j):
#         print(" ",end = "")
#     for n in range(i,j+1):
#         print("*",end = "")
#     print("\n")
# print(dir(list))
str2 = 'xiaoxie'
# print(str2.capitalize())
# print(str2)
str3 = 'CGDFGDG'
# print(str3.casefold())
# print(str3)
# print(str2.center(20))
# print(str2.count('xi',0,5))
# print(str2.endswith('ie',2,7))
str5='I\tlove\tFishC.com'
# print(str5.expandtabs())
print(str3.replace('CGDFGDG','lala',2))